Dell refreshes notebooks, desktops with Sandy Bridge

In addition to announcing its new Streak 7 tablet, Dell has taken the wraps off a pair of notebooks and desktops with Intel's new processors. Besides the new Core i3, i5 and i7 options, the revamped XPS 17 has also received Nvidia's 500M series GPUs with support for Optimus and 3D Vision when configured with an optional 3D display. WiDi with support for 1080p streaming is also on the menu if the system is outfitted with a quad-core i7 processor.